I had the same problem about 2 weeks ago. My GSP told me, that there's no problem on their side and that I should contact with EA/DICE , so I have asked them here: https://forums.battlefield.com/en-us...comment/648598
DICE as you see told me, that they did not noticed any connection attempts from my server. After this I have asked GSP to move server to another physical location, and this has solved the issue.